4results about How to "Increase design space" patented technology

The application discloses a design method of an off-axis coaxial combined optical system based on asymmetric aberration compensation, and belongs to the technical field of optical system design. The method solves the problem that asymmetric aberration introduced by an off-axis part in the design of an off-axis coaxial combined optical system is difficult to be corrected compatibly with the rotationally symmetric aberration of a coaxial part. The optical system comprises an off-axis front group and a coaxial rear group. The design method is as follows: active compensation design of asymmetric aberration is performed on the off-axis front group, and an initial structure is built according to design requirements; the initial structure is subjected to field offset; an evaluation function of the off-axis front group for the compensation of asymmetric aberration about the optical axis is constructed; the asymmetric aberration of the off-axis front group is compensated and adjusted until the function value of the evaluation function is the minimum value. Correction design of the remaining rotationally symmetric aberration is performed on the coaxial rear group; the off-axis front group and the coaxial rear group are integrated and optimized, and the design is completed. The design method can be applied to the optimization of an existing off-axis coaxial combined optical system.

The utility model discloses a desktop range hood with wind wall, including the casing, be equipped with the smoke suction passageway in the casing, the front and rear both ends of casing are equipped with the suction port and the exhaust port with the intercommunication of smoke suction passageway, be equipped with the filter device for filtering oil fume on the casing, the side air outlet passageway is equipped with in the circumference of casing corresponding the rear of suction port, and the side air outlet passageway is independent with smoke suction passageway, be equipped with the side air outlet on the side air outlet passageway, and the side air outlet is independent with exhaust port, and the side air outlet blows out the air current and forms the wind wall, the casing is set up on the support seat, is equipped with the air -blowing device of the air supply of side air outlet passageway in the support seat, and the air -blowing device is equipped with the air supply fan, the air -blowing fan of the wind force of wind wall in the utility model produces is set up in the support seat, makes the head part volume smaller, can promote the design space of product, and the smoke suction passageway and side air outlet passageway are independent, and the wind wall air current produced by side air outlet passageway is produced by independent air supply fan, and the effect of wind wall preventing oil fume escape is more reliable.

The utility model discloses a novel narrow edge hand washing basin, including the basin body, the top surface rear side of basin body is provided with rear plane, be provided with faucet mounting port on the rear plane, the outside rear part of basin body is provided with two convex parts, and the two convex parts of basin body rear part are symmetrically arranged at the left side and the right side of faucet mounting port, and the two convex parts can enhance the mechanical strength of basin rear wall, and when installing, the threaded pipe section of faucet passes through faucet mounting port from top to bottom, and is connected and is installed with connecting nut, connecting water pipe and the like connecting pipe fittings below faucet mounting port, because the two convex parts are located at left and right sides, and the convex part does not hinder the connecting pipe fitting, compared with the traditional hand washing basin, can significantly reduce the distance of basin and wall, thereby making the rear plane narrow, can reduce the width of hand washing basin whole under the condition of keeping the existing basin capacity, to satisfy the demand of small area bathroom, or under the condition of keeping the overall width of hand washing basin, increase the volume of basin.

The utility model discloses an optical anti-shake and anti-collision structure and an OIS motor. The optical anti-shake and anti-collision structure comprises a base; the flexible circuit board is fixed on the top surface of the base; the carrier is arranged at the top of the flexible circuit board; at least two first impact assemblies are uniformly arranged at the bottom of the carrier in the circumferential direction; the top of the carrier is evenly provided with at least two second impact assemblies in the circumferential direction. The carrier bracket is arranged on the outer side of the carrier in a sleeving manner; each side face of the carrier support is provided with at least one third impact assembly. The top of the carrier support is evenly provided with at least two fourth impact assemblies in the circumferential direction. And the outer frame is arranged on the base in a sleeving manner, and the flexible circuit board, the carrier and the carrier bracket are accommodated in the outer frame. According to the optical anti-shake and anti-collision structure provided by the utility model, the size of the impact table can be selected according to actual requirements by utilizing the cooperation of the detachable impact table and the impact groove, so that the impact range is adjustable, and different anti-shake strokes and focusing strokes can be met.